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            <h1><a href="index.html">FNet 実験</a></h1>
<p><a href="index.html">これは、FNetモデルをトレーニングするための注釈付きのPyTorch実験です。</a></p>
<p>これは、<a href="../../experiments/nlp_classification.html">AG News分類タスクの一般的なトレーニングループと構成に基づいています</a>。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">15</span><span></span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">16</span><span class="kn">from</span> <span class="nn">torch</span> <span class="kn">import</span> <span class="n">nn</span>
<span class="lineno">17</span>
<span class="lineno">18</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">experiment</span>
<span class="lineno">19</span><span class="kn">from</span> <span class="nn">labml.configs</span> <span class="kn">import</span> <span class="n">option</span>
<span class="lineno">20</span><span class="kn">from</span> <span class="nn">labml_helpers.module</span> <span class="kn">import</span> <span class="n">Module</span>
<span class="lineno">21</span><span class="kn">from</span> <span class="nn">labml_nn.experiments.nlp_classification</span> <span class="kn">import</span> <span class="n">NLPClassificationConfigs</span>
<span class="lineno">22</span><span class="kn">from</span> <span class="nn">labml_nn.transformers</span> <span class="kn">import</span> <span class="n">Encoder</span>
<span class="lineno">23</span><span class="kn">from</span> <span class="nn">labml_nn.transformers</span> <span class="kn">import</span> <span class="n">TransformerConfigs</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-1'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-1'>#</a>
            </div>
            <h1>トランスフォーマーベースの分類器モデル</h1>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">26</span><span class="k">class</span> <span class="nc">TransformerClassifier</span><span class="p">(</span><span class="n">nn</span><span class="o">.</span><span class="n">Module</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-2'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-2'>#</a>
            </div>
            <ul><li><code  class="highlight"><span></span><span class="n">encoder</span></code>
<a href="../models.html#Encoder">変圧器エンコーダです</a></li>
<li><code  class="highlight"><span></span><span class="n">src_embed</span></code>
<a href="../models.html#EmbeddingsWithLearnedPositionalEncoding">はトークン埋め込みモジュールです (位置エンコーディング付き)</a></li>
</ul><li><code  class="highlight"><span></span><span class="n">generator</span></code>
<a href="../models.html#Generator">ロジットを生成する最後の完全接続層です</a>。</li>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">30</span>    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">encoder</span><span class="p">:</span> <span class="n">Encoder</span><span class="p">,</span> <span class="n">src_embed</span><span class="p">:</span> <span class="n">Module</span><span class="p">,</span> <span class="n">generator</span><span class="p">:</span> <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-3'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-3'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">37</span>        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>
<span class="lineno">38</span>        <span class="bp">self</span><span class="o">.</span><span class="n">src_embed</span> <span class="o">=</span> <span class="n">src_embed</span>
<span class="lineno">39</span>        <span class="bp">self</span><span class="o">.</span><span class="n">encoder</span> <span class="o">=</span> <span class="n">encoder</span>
<span class="lineno">40</span>        <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="n">generator</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-4'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-4'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">42</span>    <span class="k">def</span> <span class="nf">forward</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-5'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-5'>#</a>
            </div>
            <p>位置エンコーディングによるトークンの埋め込みを取得</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">44</span>        <span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">src_embed</span><span class="p">(</span><span class="n">x</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-6'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-6'>#</a>
            </div>
            <p>トランスエンコーダー</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">46</span>        <span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">encoder</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-7'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-7'>#</a>
            </div>
            <p>分類用のロジットを取得します。</p>
<p><code  class="highlight"><span></span><span class="p">[</span><span class="n">CLS</span><span class="p">]</span></code>
シーケンスの最後の位置にトークンを設定します。これは、<code  class="highlight"><span></span><span class="n">x</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span></code>
<code  class="highlight"><span></span><span class="n">x</span></code>
形状がどこにあるかによって抽出されます <code  class="highlight"><span></span><span class="p">[</span><span class="n">seq_len</span><span class="p">,</span> <span class="n">batch_size</span><span class="p">,</span> <span class="n">d_model</span><span class="p">]</span></code>
</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">52</span>        <span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="p">(</span><span class="n">x</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-8'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-8'>#</a>
            </div>
            <p>結果を返します（トレーナーはRNNでも使用されるため、2番目の値は状態用です）</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">56</span>        <span class="k">return</span> <span class="n">x</span><span class="p">,</span> <span class="kc">None</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-9'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-9'>#</a>
            </div>
            <h2>コンフィギュレーション</h2>
<p>これは以下から継承されます <a href="../../experiments/nlp_classification.html"><code  class="highlight"><span></span><span class="n">NLPClassificationConfigs</span></code>
</a></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">59</span><span class="k">class</span> <span class="nc">Configs</span><span class="p">(</span><span class="n">NLPClassificationConfigs</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-10'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-10'>#</a>
            </div>
            <p>分類モデル</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">68</span>    <span class="n">model</span><span class="p">:</span> <span class="n">TransformerClassifier</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-11'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-11'>#</a>
            </div>
            <p>変圧器</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">70</span>    <span class="n">transformer</span><span class="p">:</span> <span class="n">TransformerConfigs</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-12'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-12'>#</a>
            </div>
            <h3>変圧器構成</h3>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">73</span><span class="nd">@option</span><span class="p">(</span><span class="n">Configs</span><span class="o">.</span><span class="n">transformer</span><span class="p">)</span>
<span class="lineno">74</span><span class="k">def</span> <span class="nf">_transformer_configs</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">Configs</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-13'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-13'>#</a>
            </div>
            <p><a href="../configs.html#TransformerConfigs">設定可能なトランス実装を使用しています</a></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">81</span>    <span class="n">conf</span> <span class="o">=</span> <span class="n">TransformerConfigs</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-14'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-14'>#</a>
            </div>
            <p>埋め込みやロジットの生成に使用するボキャブラリーサイズを設定</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">83</span>    <span class="n">conf</span><span class="o">.</span><span class="n">n_src_vocab</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">n_tokens</span>
<span class="lineno">84</span>    <span class="n">conf</span><span class="o">.</span><span class="n">n_tgt_vocab</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">n_tokens</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-15'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-15'>#</a>
            </div>
            <p></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">87</span>    <span class="k">return</span> <span class="n">conf</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-16'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-16'>#</a>
            </div>
            <p><code  class="highlight"><span></span><span class="n">FNetMix</span></code>
<a href="../models.html#TransformerLayer">トランスエンコーダー層のセルフアテンションに代わるモジュールを作成してください</a>。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">90</span><span class="nd">@option</span><span class="p">(</span><span class="n">TransformerConfigs</span><span class="o">.</span><span class="n">encoder_attn</span><span class="p">)</span>
<span class="lineno">91</span><span class="k">def</span> <span class="nf">fnet_mix</span><span class="p">():</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-17'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-17'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">97</span>    <span class="kn">from</span> <span class="nn">labml_nn.transformers.fnet</span> <span class="kn">import</span> <span class="n">FNetMix</span>
<span class="lineno">98</span>    <span class="k">return</span> <span class="n">FNetMix</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-18'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-18'>#</a>
            </div>
            <p>分類モデルの作成</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">101</span><span class="nd">@option</span><span class="p">(</span><span class="n">Configs</span><span class="o">.</span><span class="n">model</span><span class="p">)</span>
<span class="lineno">102</span><span class="k">def</span> <span class="nf">_model</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">Configs</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-19'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-19'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">106</span>    <span class="n">m</span> <span class="o">=</span> <span class="n">TransformerClassifier</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">transformer</span><span class="o">.</span><span class="n">encoder</span><span class="p">,</span>
<span class="lineno">107</span>                              <span class="n">c</span><span class="o">.</span><span class="n">transformer</span><span class="o">.</span><span class="n">src_embed</span><span class="p">,</span>
<span class="lineno">108</span>                              <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">d_model</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">n_classes</span><span class="p">))</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">device</span><span class="p">)</span>
<span class="lineno">109</span>
<span class="lineno">110</span>    <span class="k">return</span> <span class="n">m</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-20'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-20'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">113</span><span class="k">def</span> <span class="nf">main</span><span class="p">():</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-21'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-21'>#</a>
            </div>
            <p>実験を作成</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">115</span>    <span class="n">experiment</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s2">&quot;fnet&quot;</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-22'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-22'>#</a>
            </div>
            <p>コンフィグの作成</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">117</span>    <span class="n">conf</span> <span class="o">=</span> <span class="n">Configs</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-23'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-23'>#</a>
            </div>
            <p>オーバーライド設定</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">119</span>    <span class="n">experiment</span><span class="o">.</span><span class="n">configs</span><span class="p">(</span><span class="n">conf</span><span class="p">,</span> <span class="p">{</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-24'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-24'>#</a>
            </div>
            <p>ワールドレベルのトークナイザーを使う</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">121</span>        <span class="s1">&#39;tokenizer&#39;</span><span class="p">:</span> <span class="s1">&#39;basic_english&#39;</span><span class="p">,</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-25'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-25'>#</a>
            </div>
            <p><span ><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">32</span></span></span></span></span>時代に合わせた列車</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">124</span>        <span class="s1">&#39;epochs&#39;</span><span class="p">:</span> <span class="mi">32</span><span class="p">,</span></pre></div>
        </div>
    </div>
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            <div class='section-link'>
                <a href='#section-26'>#</a>
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            <p>エポックごとにトレーニングと検証を切り替える <span ><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">10</span></span></span></span></span></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">127</span>        <span class="s1">&#39;inner_iterations&#39;</span><span class="p">:</span> <span class="mi">10</span><span class="p">,</span></pre></div>
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    </div>
    <div class='section' id='section-27'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-27'>#</a>
            </div>
            <p>変圧器構成 (デフォルトと同じ)</p>

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        <div class='code'>
            <div class="highlight"><pre><span class="lineno">130</span>        <span class="s1">&#39;transformer.d_model&#39;</span><span class="p">:</span> <span class="mi">512</span><span class="p">,</span>
<span class="lineno">131</span>        <span class="s1">&#39;transformer.ffn.d_ff&#39;</span><span class="p">:</span> <span class="mi">2048</span><span class="p">,</span>
<span class="lineno">132</span>        <span class="s1">&#39;transformer.n_heads&#39;</span><span class="p">:</span> <span class="mi">8</span><span class="p">,</span>
<span class="lineno">133</span>        <span class="s1">&#39;transformer.n_layers&#39;</span><span class="p">:</span> <span class="mi">6</span><span class="p">,</span></pre></div>
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    <div class='section' id='section-28'>
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            <div class='section-link'>
                <a href='#section-28'>#</a>
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            <p><a href="index.html">自己アテンションの代わりにFNetを使う</a></p>

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        <div class='code'>
            <div class="highlight"><pre><span class="lineno">137</span>        <span class="s1">&#39;transformer.encoder_attn&#39;</span><span class="p">:</span> <span class="s1">&#39;fnet_mix&#39;</span><span class="p">,</span></pre></div>
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    </div>
    <div class='section' id='section-29'>
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            <div class='section-link'>
                <a href='#section-29'>#</a>
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            <p><a href="../../optimizers/noam.html">Noam</a> オプティマイザを使う</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">140</span>        <span class="s1">&#39;optimizer.optimizer&#39;</span><span class="p">:</span> <span class="s1">&#39;Noam&#39;</span><span class="p">,</span>
<span class="lineno">141</span>        <span class="s1">&#39;optimizer.learning_rate&#39;</span><span class="p">:</span> <span class="mf">1.</span><span class="p">,</span>
<span class="lineno">142</span>    <span class="p">})</span></pre></div>
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            <div class='section-link'>
                <a href='#section-30'>#</a>
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            <p>保存および読み込み用のモデルを設定する</p>

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        <div class='code'>
            <div class="highlight"><pre><span class="lineno">145</span>    <span class="n">experiment</span><span class="o">.</span><span class="n">add_pytorch_models</span><span class="p">({</span><span class="s1">&#39;model&#39;</span><span class="p">:</span> <span class="n">conf</span><span class="o">.</span><span class="n">model</span><span class="p">})</span></pre></div>
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    </div>
    <div class='section' id='section-31'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-31'>#</a>
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            <p>実験を始める</p>

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        <div class='code'>
            <div class="highlight"><pre><span class="lineno">148</span>    <span class="k">with</span> <span class="n">experiment</span><span class="o">.</span><span class="n">start</span><span class="p">():</span></pre></div>
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    </div>
    <div class='section' id='section-32'>
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                <a href='#section-32'>#</a>
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            <p>トレーニングを実行</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">150</span>        <span class="n">conf</span><span class="o">.</span><span class="n">run</span><span class="p">()</span></pre></div>
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    </div>
    <div class='section' id='section-33'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-33'>#</a>
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            <p></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">154</span><span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="lineno">155</span>    <span class="n">main</span><span class="p">()</span></pre></div>
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